Discovery of a strange tribaryon S0(3115) in 4He(stopped K−,p) reaction

We have measured the proton energy distribution from the 4He(stopped K−,p) reaction by means of time-of-flight. A mono-energetic peak was observed, which is interpreted as the formation of a new kind of neutral tribaryon S0(3115) with isospin T=1 and strangeness S=−1. The mass and width of the state...

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Bibliographic Details
Published in:Physics letters. B 2004-09, Vol.597 (3-4), p.263-269
Main Authors: Suzuki, T., Bhang, H., Franklin, G., Gomikawa, K., Hayano, R.S., Hayashi, T., Ishikawa, K., Ishimoto, S., Itahashi, K., Iwasaki, M., Katayama, T., Kondo, Y., Matsuda, Y., Nakamura, T., Okada, S., Outa, H., Quinn, B., Sato, M., Shindo, M., So, H., Strasser, P., Sugimoto, T., Suzuki, K., Suzuki, S., Tomono, D., Vinodkumar, A.M., Widmann, E., Yamazaki, T., Yoneyama, T.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Nuclear physics
Physics
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Summary:We have measured the proton energy distribution from the 4He(stopped K−,p) reaction by means of time-of-flight. A mono-energetic peak was observed, which is interpreted as the formation of a new kind of neutral tribaryon S0(3115) with isospin T=1 and strangeness S=−1. The mass and width of the state were deduced to be 3117.0−4.4+1.5MeV/c2 and
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2004.07.046